dockerkill.sh

#!/usr/bin/env bash
#
# dockerkill.sh <pattern> - stop & kill all docker processes matching <pattern>
#
# Copyright (C) 2017 Michael Davies <michael@the-davies.net>
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
# Or try here: http://www.fsf.org/copyleft/gpl.html
#

__check_cmd_avail ()
{
    if ! hash ${1} &> /dev/null; then
        echo "The command '$1' could not be found, exiting"
        exit 1
    fi
}

# Verify we have the commands we need
DOCKER=docker
__check_cmd_avail ${DOCKER}

USAGE="$(basename $0) <pattern>: Please specify a docker name pattern"
if [ $# -eq 0 ]; then
  echo ${USAGE}
  exit 2
fi

ALL_PROCS=""
ALL_PROCS_IDS=""
for PATTERN in "$@";
do
    LOCAL_PROCS=$(${DOCKER} ps -a | grep ${PATTERN})
    LOCAL_PROCS_IDS=$(echo "${LOCAL_PROCS}" | cut -f1 -d" ")

    if [ ! -z "${LOCAL_PROCS}" ]; then
        ALL_PROCS="${ALL_PROCS} ${LOCAL_PROCS}"
        ALL_PROCS_IDS="${ALL_PROCS_IDS} ${LOCAL_PROCS_IDS}"
    fi
done

if [ -z "${ALL_PROCS}" ]; then
    echo "No processes found"
    exit 3
fi

echo "Found these processes:"
echo "${ALL_PROCS}"
read -p "Do you want to delete all of these processes? "
if [[ ! $REPLY =~ ^[Yy]$ ]]; then
    printf "Exiting. Not deleting docker processes.\n"
    exit 0
fi

# Stop all docker processes matching $PATTERN
${DOCKER} stop ${ALL_PROCS_IDS} >& /dev/null

# Remove them all
${DOCKER} rm ${ALL_PROCS_IDS} >& /dev/null